Hungover or spiked?

Hi all, quick question.

This is casting my mind back to when I was 17 (29 now), but I’ve never been able to answer this question.

Just before Christmas when I was 17, I went to a friend’s house for a few drinks and had way too much to drink (beers, lagers, ciders, shots and a fishbowl). To this day I can remember very little of that night, but I passed out at some point and had to be taken home.

I came to at about six o’clock the next morning, with the room spinning, but I was also hearing psychedelic music in my head and having auditory and visual hallucinations. I’d been drunk before, but had never experienced this before (or since, for that matter). At one point I looked out of my bedroom window and thought I saw a man dressed in orange standing on the neighbour’s roof, but when I looked again he was gone.

Can anyone tell me if this was just a really bad hangover or if I might have been drugged the night before?